Why does each answer equal 0?

Question

Casio fx-82ES

Scientific calculator by Casio with 252 functions and full dot matrix display. It also features a Replay function and seven variable memory.

crwdns2934065:0crwdne2934065:0: 37

2

1

crwdns2933897:0crwdne2933897:0

My calculator answers each question as 0 and true or false.

For example if I do 2+2 it says that equals 0

and has the word false underneath it in capital letters.

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 3

Peter Eve @immaculatepasta crwdns2934065:0crwdne2934065:0: 13 1 · Answer 1 · 2017-03-16T16:59:55-07:00

crwdns2934057:0crwdne2934057:0

crwdns2934065:0crwdne2934065:0: 13

1

crwdns2933897:0crwdne2933897:0

Press the mode/setup button on the right side of the top row, then press 1 to return to COMPute mode instead of VERIFy mode

crwdns2934105:0crwdne2934105:0

crwdns2889612:0crwdne2889612:0 1

Thomas Cross @thomasc crwdns2934065:0crwdne2934065:0: 1 1 · Answer 2 · 2017-01-27T06:18:53-07:00

crwdns2934065:0crwdne2934065:0: 1

1

crwdns2933897:0crwdne2933897:0

You need to switch it back to calculator mode

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crwdns2889612:0crwdne2889612:0 0